rework the samples
This commit is contained in:
Jeremie Roy
Родитель
b2e506d7aa
Коммит
2f89ab16ba
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@ -162,7 +162,7 @@ int _main_(int /*_argc*/, char** /*_argv*/)
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float view[16];
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float proj[16];
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mtxLookAt(view, eye, at);
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mtxLookAt(view, eye, at);
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//setup a top-left ortho matrix for screen space drawing
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float centering = 0.5f;
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mtxOrtho(proj, centering, width+centering,height+centering, centering,-1.0f, 1.0f);
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@ -12,39 +12,24 @@
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#include <stdio.h>
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#include <string.h>
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static const char* s_shaderPath = NULL;
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long int fsize(FILE* _file)
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inline void mtxTranslate(float* _result, float x, float y, float z)
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{
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long int pos = ftell(_file);
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fseek(_file, 0L, SEEK_END);
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long int size = ftell(_file);
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fseek(_file, pos, SEEK_SET);
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return size;
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memset(_result, 0, sizeof(float)*16);
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_result[0] = _result[5] = _result[10] = _result[15] = 1.0f;
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_result[12] = x;
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_result[13] = y;
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_result[14] = z;
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}
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static const bgfx::Memory* loadShader(const char* _shaderPath, const char* _shaderName)
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inline void mtxScale(float* _result, float x, float y, float z)
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{
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char out[512];
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strcpy(out, _shaderPath);
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strcat(out, _shaderName);
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strcat(out, ".bin");
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FILE* file = fopen(out, "rb");
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if (NULL != file)
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{
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uint32_t size = (uint32_t)fsize(file);
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const bgfx::Memory* mem = bgfx::alloc(size+1);
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/*size_t ignore =*/ fread(mem->data, 1, size, file);
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/*BX_UNUSED(ignore);*/
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fclose(file);
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mem->data[mem->size-1] = '\0';
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return mem;
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}
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return NULL;
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memset(_result, 0, sizeof(float)*16);
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_result[0] = x;
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_result[5] = y;
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_result[10] = z;
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_result[15] = 1.0f;
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}
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int _main_(int /*_argc*/, char** /*_argv*/)
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{
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uint32_t width = 1280;
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@ -68,92 +53,44 @@ int _main_(int /*_argc*/, char** /*_argv*/)
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, 1.0f
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, 0
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);
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// Setup root path for binary shaders. Shader binaries are different
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// for each renderer.
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switch (bgfx::getRendererType() )
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{
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default:
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case bgfx::RendererType::Direct3D9:
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s_shaderPath = "shaders/dx9/";
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break;
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case bgfx::RendererType::Direct3D11:
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s_shaderPath = "shaders/dx11/";
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break;
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case bgfx::RendererType::OpenGL:
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s_shaderPath = "shaders/glsl/";
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break;
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case bgfx::RendererType::OpenGLES2:
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case bgfx::RendererType::OpenGLES3:
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s_shaderPath = "shaders/gles/";
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break;
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}
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const bgfx::Memory* mem;
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mem = loadShader(s_shaderPath, "vs_font_basic");
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bgfx::VertexShaderHandle vsh = bgfx::createVertexShader(mem);
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mem = loadShader(s_shaderPath, "fs_font_basic");
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bgfx::FragmentShaderHandle fsh = bgfx::createFragmentShader(mem);
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bgfx::ProgramHandle _basicProgram = bgfx::createProgram(vsh, fsh);
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bgfx::destroyVertexShader(vsh);
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bgfx::destroyFragmentShader(fsh);
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mem = loadShader(s_shaderPath, "vs_font_distance_field");
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vsh = bgfx::createVertexShader(mem);
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mem = loadShader(s_shaderPath, "fs_font_distance_field");
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fsh = bgfx::createFragmentShader(mem);
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bgfx::ProgramHandle _distanceProgram = bgfx::createProgram(vsh, fsh);
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bgfx::destroyVertexShader(vsh);
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bgfx::destroyFragmentShader(fsh);
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mem = loadShader(s_shaderPath, "vs_font_distance_field_subpixel");
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vsh = bgfx::createVertexShader(mem);
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mem = loadShader(s_shaderPath, "fs_font_distance_field_subpixel");
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fsh = bgfx::createFragmentShader(mem);
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bgfx::ProgramHandle _distanceSubpixelProgram = bgfx::createProgram(vsh, fsh);
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bgfx::destroyVertexShader(vsh);
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bgfx::destroyFragmentShader(fsh);
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//init the text rendering system
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FontManager* fontManager = new FontManager(512);
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TextBufferManager* textBufferManager = new TextBufferManager(fontManager);
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textBufferManager->init(_basicProgram, _distanceProgram, _distanceSubpixelProgram);
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//load a truetype files
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TrueTypeHandle times_tt = fontManager->loadTrueTypeFromFile("c:/windows/fonts/times.ttf");
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/*
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"font/droidsans.ttf",
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"font/chp-fire.ttf",
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"font/bleeding_cowboys.ttf",
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"font/mias_scribblings.ttf",
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"font/ruritania.ttf",
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"font/signika-regular.ttf",
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"font/five_minutes.otf"
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*/
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TrueTypeHandle times_tt = fontManager->loadTrueTypeFromFile("font/bleeding_cowboys.ttf");
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//create a distance field font
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FontHandle distance_font = fontManager->createFontByPixelSize(times_tt, 0, 48, FONT_TYPE_DISTANCE);
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//create a scalled down version of the same font (without adding anything to the atlas)
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FontHandle smaller_font = fontManager->createScaledFontToPixelSize(distance_font, 32);
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//preload glyph and generate (generate bitmap's)
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fontManager->preloadGlyph(distance_font, L"abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ. \n");
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fontManager->preloadGlyph(distance_font, L"abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ.,\" \n");
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uint32_t fontsCount = 0;
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FontHandle fonts[64];
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fonts[fontsCount++] = distance_font;
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//generate various sub distance field fonts at various size
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int32_t step=4;
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for(int32_t ii = 64; ii>1 ; ii-=step)
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{
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if(ii<32) step = 2;
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//instantiate a usable font
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FontHandle font = fontManager->createScaledFontToPixelSize(distance_font, ii);
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fonts[fontsCount++] = font;
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}
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//You can unload the truetype files at this stage, but in that case, the set of glyph's will be limited to the set of preloaded glyph
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fontManager->unloadTrueType(times_tt);
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TextBufferHandle staticText = textBufferManager->createTextBuffer(FONT_TYPE_DISTANCE, STATIC);
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textBufferManager->setPenPosition(staticText, 10.0f, 70.0f);
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textBufferManager->setTextColor(staticText, 0xFFFFFFFF);
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//textBufferManager->setTextColor(staticText, 0x000000FF);
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for(uint32_t ii = 0; ii< fontsCount; ++ii)
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{
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textBufferManager->appendText(staticText, fonts[ii], L"The quick brown fox jumps over the lazy dog\n");
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//textBufferManager->appendText(staticText, fonts[i], L"abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ\n");
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}
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TextBufferHandle staticText = textBufferManager->createTextBuffer(FONT_TYPE_DISTANCE, STATIC);
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textBufferManager->setTextColor(staticText, 0xDD0000FF);
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//textBufferManager->appendText(staticText, distance_font, L"The quick brown fox jumps over the lazy dog\n");
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//textBufferManager->appendText(staticText, distance_font, L"abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ\n");
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textBufferManager->appendText(staticText, distance_font, L"BGFX ");
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textBufferManager->appendText(staticText, smaller_font, L"bgfx");
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int64_t timeOffset = bx::getHPCounter();
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while (!processEvents(width, height, debug, reset) )
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{
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// Set view 0 default viewport.
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@ -169,6 +106,7 @@ int _main_(int /*_argc*/, char** /*_argv*/)
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last = now;
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const double freq = double(bx::getHPFrequency() );
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const double toMs = 1000.0/freq;
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float time = (float)( (now - timeOffset)/double(bx::getHPFrequency() ) );
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// Use debug font to print information about this example.
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bgfx::dbgTextClear();
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@ -178,17 +116,36 @@ int _main_(int /*_argc*/, char** /*_argv*/)
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float at[3] = { 0, 0, 0.0f };
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float eye[3] = {0, 0, -1.0f };
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float view[16];
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float proj[16];
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mtxLookAt(view, eye, at);
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mtxLookAt(view, eye, at);
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float centering = 0.5f;
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//setup a top-left ortho matrix for screen space drawing
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mtxOrtho(proj, centering, width+centering,height+centering, centering,-1.0f, 1.0f);
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mtxOrtho(proj, centering, width+centering,height+centering, centering,-1.0f, 1.0f);
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// Set view and projection matrix for view 0.
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bgfx::setViewTransform(0, view, proj);
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bgfx::setViewTransform(0, view, proj);
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TextRectangle rect = textBufferManager->getRectangle(staticText);
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float mtxA[16];
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float mtxB[16];
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float mtxC[16];
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mtxRotateZ(mtxA, time*0.37f);
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mtxTranslate(mtxB, -(rect.width*0.5f), -(rect.height*0.5f), 0);
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mtxMul(mtxC, mtxB, mtxA);
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float scale=4.1f+4.0f*sinf(time);
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mtxScale(mtxA, scale, scale, 1.0f);
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mtxMul(mtxB, mtxC, mtxA);
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mtxTranslate(mtxC, ((width)*0.5f), ((height)*0.5f), 0);
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mtxMul(mtxA, mtxB, mtxC);
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// Set model matrix for rendering.
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bgfx::setTransform(mtxA);
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//draw your text
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textBufferManager->submitTextBuffer(staticText, 0);
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@ -197,17 +154,11 @@ int _main_(int /*_argc*/, char** /*_argv*/)
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bgfx::frame();
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}
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//destroy the fonts
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for(uint32_t ii=0; ii<fontsCount;++ii)
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{
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fontManager->destroyFont(fonts[ii]);
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}
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//destroy the fonts
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fontManager->destroyFont(distance_font);
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fontManager->destroyFont(smaller_font);
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textBufferManager->destroyTextBuffer(staticText);
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bgfx::destroyProgram(_basicProgram);
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bgfx::destroyProgram(_distanceProgram);
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bgfx::destroyProgram(_distanceSubpixelProgram);
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textBufferManager->destroyTextBuffer(staticText);
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delete textBufferManager;
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delete fontManager;
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@ -115,6 +115,9 @@ public:
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uint32_t getIndexSize(){ return sizeof(uint16_t); }
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uint32_t getTextColor(){ return toABGR(m_textColor); }
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TextRectangle getRectangle() const { return m_rectangle; }
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private:
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void appendGlyph(CodePoint_t _codePoint, const FontInfo& _font, const GlyphInfo& _glyphInfo);
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void verticalCenterLastLine(float _txtDecalY, float _top, float _bottom);
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@ -147,6 +150,8 @@ private:
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float m_lineDescender;
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float m_lineGap;
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TextRectangle m_rectangle;
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///
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FontManager* m_fontManager;
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@ -195,7 +200,8 @@ TextBuffer::TextBuffer(FontManager* _fontManager)
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m_lineDescender = 0;
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m_lineGap = 0;
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m_fontManager = _fontManager;
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m_rectangle.width = 0;
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m_rectangle.height = 0;
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m_vertexBuffer = new TextVertex[MAX_BUFFERED_CHARACTERS * 4];
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m_indexBuffer = new uint16_t[MAX_BUFFERED_CHARACTERS * 6];
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@ -224,8 +230,10 @@ void TextBuffer::appendText(FontHandle _fontHandle, const char * _string)
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m_originY = m_penY;
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m_lineDescender = 0;// font.m_descender;
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m_lineAscender = 0;//font.m_ascender;
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}
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uint32_t codepoint;
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uint32_t state = 0;
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@ -294,6 +302,8 @@ void TextBuffer::clearTextBuffer()
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m_lineStartIndex = 0;
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m_lineAscender = 0;
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m_lineDescender = 0;
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m_rectangle.width = 0;
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m_rectangle.height = 0;
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}
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void TextBuffer::appendGlyph(CodePoint_t _codePoint, const FontInfo& _font, const GlyphInfo& _glyphInfo)
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@ -307,9 +317,10 @@ void TextBuffer::appendGlyph(CodePoint_t _codePoint, const FontInfo& _font, cons
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m_lineDescender = 0;
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m_lineAscender = 0;
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m_lineStartIndex = m_vertexCount;
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return;
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}
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if( _font.m_ascender > m_lineAscender || (_font.m_descender < m_lineDescender) )
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{
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if( _font.m_descender < m_lineDescender )
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@ -458,9 +469,12 @@ void TextBuffer::appendGlyph(CodePoint_t _codePoint, const FontInfo& _font, cons
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m_indexBuffer[m_indexCount + 5] = m_vertexCount+3;
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m_vertexCount += 4;
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m_indexCount += 6;
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//TODO see what to do when doing subpixel rendering
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m_penX += _glyphInfo.m_advance_x;
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if(m_penX > m_rectangle.width) m_rectangle.width = m_penX;
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if( (m_penY - m_lineDescender) > m_rectangle.height) m_rectangle.height = (m_penY - m_lineDescender);
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//if(x1 > m_rectangle.width) m_rectangle.width = x1;
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//if(y1 > m_rectangle.height) m_rectangle.height = y1;
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}
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void TextBuffer::verticalCenterLastLine(float _dy, float _top, float _bottom)
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@ -803,3 +817,10 @@ void TextBufferManager::clearTextBuffer(TextBufferHandle _handle)
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BufferCache& bc = m_textBuffers[_handle.idx];
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bc.m_textBuffer->clearTextBuffer();
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}
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TextRectangle TextBufferManager::getRectangle(TextBufferHandle _handle) const
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{
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BX_CHECK( bgfx::invalidHandle != _handle.idx, "Invalid handle used");
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BufferCache& bc = m_textBuffers[_handle.idx];
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return bc.m_textBuffer->getRectangle();
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}
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@ -24,6 +24,11 @@ enum TextStyleFlags
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STYLE_BACKGROUND = 1<<3,
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};
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struct TextRectangle
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{
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float width, height;
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};
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class TextBuffer;
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class TextBufferManager
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{
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@ -54,6 +59,8 @@ public:
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/// Clear the text buffer and reset its state (pen/color)
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void clearTextBuffer(TextBufferHandle _handle);
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TextRectangle getRectangle(TextBufferHandle _handle) const;
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/// return the size of the text
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//Rectangle measureText(FontHandle fontHandle, const char * _string);
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@ -80,4 +87,7 @@ private:
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bgfx::ProgramHandle m_basicProgram;
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bgfx::ProgramHandle m_distanceProgram;
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bgfx::ProgramHandle m_distanceSubpixelProgram;
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float m_height;
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float m_width;
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};
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